Williams made a name for himself on the national stage in his three seasons at the University of Illinois, which was capped off with an appearance in the national championship game in 2005.
That Fighting Illini squad was known for their three-point shooting ability after shooting nearly 40 percent from behind the arc as a team and making an average of almost nine threes per game. Of the five starters, Williams is the only who still plays in the NBA and he hasn't lost his shooting touch from the outside.
As D-Will's shots per game have increased over the course of his career, so have his three-point attempts. He can score from anywhere in three-point range and he's deadly from the corners. He made nearly 47 percent of his corner threes last season, according to Vorped.
Williams can create his own shot, pull-up for three in transition or play off the ball for catch-and-shoot opportunities.
His best three-point shooting performance of his career was in a 95-78 win against the Washington Wizards last season when he set the NBA record for most three-point field goals in a half. He scored 23 points in the first quarter and started the game eight-for-eight from behind the arc.
In the video, D-Will knocked down threes from both wings and the top of the key. Williams made a few threes in transition, his teammate Gerald Wallace assisted him on a couple of catch-and-shoot threes and he even had one turn-around jumper.
Williams' three-point shot is even more dangerous because he can use a shot fake to get his defender to jump in the air to block his shot. Once his defender is in the air, he can either draw a foul or he can drive past the defender.
At 3:51 in the video, Williams gets John Wall to jump past the three-point line to put a hand in Williams' face but the Nets point guard takes a few dribbles to get by Wall and he knocks down an open jump shot.